The radius is half of the diameter.
To find the circumference, use the equation C=2(pi)r or C=(pi)d.
r meaning radius. d meaning diameter.
(pi) is about 3.14 or 22/7
Answer:
Answer:
A. 2 sinx cosx - 1 + 2 sin^2 x.
Step-by-step explanation:
sin2x = 2 sinx cosx
cos2x = cos^2x - sin^2x
So sin2x - cos2x = 2 sinx cosx - ( cos^2x - sin^2x)
But cos^2 x = 1 - sin^2 x, so we have:
2 sinx cosx - (1 - sin^2 x - sin^2x)
= 2 sinx cosx - 1 + 2 sin^2 x.
Answer:
20 chocolate and 35 peanut butter ( 4c+7p=1 )
Step-by-step explanation:
multiply both sides by 5
Shorts - 6s
Blazer - 3s
6*s + 3*s = 139.5
9s=139.5
s=139.5/9
s=15.5
blazer - $46.5
By using the Pythagorean theorem, you can find that the sides should be equal to 9*
or roughly 12.73
